Home / 831,676.98-1,147,432.32-678,450.29

Finding the Fourth Proportional to 831,676.98, 1,147,432.32 and 678,450.29

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Solution

The fourth proportional to 831,676.98, 1,147,432.32 and 678,450.29 is: 936,031.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,676.98 : 1,147,432.32 = 678,450.29 : x
  2. Step 2: Convert to fraction form
    831,676.98/1,147,432.32 = 678,450.29/x
  3. Step 3: Cross multiply
    831,676.98x = 1,147,432.32 × 678,450.29
  4. Step 4: Simplify right side
    831,676.98x = 778,475,790,259.37
  5. Step 5: Solve for x
    x = 778,475,790,259.37/831,676.98
  6. Step 6: Final answer
    x = 936,031.43

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.